The quartet made their debut in the 1984 film The Audition, which cost ¥4 billion yen to produce.
The quartet inspired Kazuhiko Shimamoto to create the character team Battle Four (戦闘フォー, Sentō Fō) in his manga Blazing Transfer Student.
In September 1986, the Tokyo District Court ordered Riv.Star Records to pay Nichigei Project ¥388 million in compensation.
[2] On January 18, 1987, after two years and two months of activity, Saint Four performed their final concert at Maison Franco-Japonaise in Shibuya before disbanding.
Hamada and Suzuki formed the rock duo Pink Jaguar (ピンクジャガー, Pinku Jagā).
The duo released two singles and one studio album before going their separate ways in 1989 and pursuing careers as actresses.